PAUXULUS. 245 



Until the type of this species is re-examined it may well be 

 considered a synonym of F. layardi. Pfeiffer evidently 

 thought the parietal lamella a columellar, his parietal being 

 the angular lamella. He did not mention the minute supra- 

 columellar which is present in F. layardi. Otherwise the de- 

 scription applies well to that species. 



F. layardi stoaphora ('Bens.' Burnup). PL 41, figs. 7, 8. 



The shells "agree in all essentials with F. layardi Bens., 

 except in their smaller size and darker color. 



"Height 6.88, width 3.07 mm. 



"Height 5.67, width 2.75 mm." (Burnup). 



Length 6.4, diam. above aperture 2.4 mm. ; 8^ whorls. 



Length 6, diam. above aperture 2.8 mm. ; iy 2 whorls. 



Bredasdorp, Cape Province (Layard). 



[Pupa- layardi] var. minor Benson, Ann. Mag. N. H. (3), 

 xiii, 1864, p. 496. Pupa layardi var. minor Bens. ? [F. stoa- 

 phora Bens.], BURNUP, Ann. Mag. N. H. (8), vii, 1911, p. 

 408, pi. 10, f. 5, 6. 



Benson appears to have distributed this form under the 

 name Pupa stoaphora to various collections, such as the Brit- 

 ish Museum, John Ponsonby and A. Morelet, now in A. N. S. 

 P. ; subsequently describing it as Pupa layardi var. minor, his 

 own examples, now in Cambridge Zoological Museum, being 

 under this name. As minor had been used several times for 

 varieties of Pupa previous to Benson's description, we sub- 

 stitute stoaphora, which was first defined by Mr. Burnup 

 from "two shells in the collection of Mr. Ponsonby, given to 

 him by Mr. Benson as representing his species stoaphora. ' ' 



The last two measurements given above are from specimens 

 labeled by Benson, one received through Morelet, the other 

 through Sowerby and Fulton. The latter is wider than those 

 figured, and the last whorl ascends in front, the aperture 

 being tilted upward a little. 



Benson defined var. minor as follows: "Chestnut-corneous, 

 translucent; aperture orange-whitish; whorls 8. Length 

 51^-7, width 2-3 mill. Inhabits Bredasdorp." 



One of Mr. Burnup 's figures is copied in fig. 8 ; fig. 7 being 

 from a shell in A. N. S. coll., from Benson through Morelet. 



